Tapping and drilling machine



(No Model!) 2 Sheets-Sheet l. G. W. LONGMAN.-

TAPPING AND DRILLING MACHINE.

No. 259,406. Patented June 13, 1882.

N, PETERS. Pbdomhogripher. Washingim D c.

(No Model.) 2 Sheets-Sheet 2.

G. W. LONGMAN.

TAPPING AND DRILLING MAGH INJEL No. 259,406. Patented June 13, 188.2.

MZZL/ZML 22 ZMMQZ v v gg %ggz 4% ATENT F F ICE.

GEORGE E. LONGMAN, OF PATERSON, NEW JERSEY.

TAPPING AND DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 259,406, dated June 13, 1882..

Application filed March 24, 1882. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. LONGMAN, a citizen of the United States, residing at Paterson, Passaic county, State of New Jersey, have invented a new and useful Improvement in Tapping and Drilling Machines, of which the following is a specification, reference being bad to the accompanyingdrawings, forming a part thereof.

My invention relates to devices for tapping of holes in boilers, 810., and has for its object the production of a portable device, to be operated either by hand or by power, to drill holes in metal and tap the same perpendicularly, horizontally, or at any desired angle.

Figure l is a plan view of my newly-invented tapping and drilling device, showing it horizontally. Fig. 2 is a side view of the same at an angle. Fig. 3 is an end view of the same arranged perpendicularly, and Fig. 4c is a sectional view of my improvement.

it represents a bed-plate, on which are erected two standards, a a, that support a driving-shaft, d, and an adjustable frame, f, having a sleeve,f, into which sleeve one end of the shaft (Z is journaled. 0n the outer end of the shaft (1 there is arranged a crank, 11, to operate the device when the same is worked byhand, or a driving-pulley when operated by power. The inner end of the shaftis provided with a beveled-gear wheel, 6, that gears with a like gearwvheel, 0, located on adriving-spindle, al that is journaled in the adjustable frame f. The driving-spindle d is also provided with .a channeled gear-wheel, c and an adjustable frame, f having a sleeve, f, that works in the channel of the wheel 6 and is kept in position by a collar, h. Journaled in one of the forks of the adjustable frame f is a channeled gear-wheel, 6 through which andin which thereis journaled agrooved tap ordrillspindle, d havingon the end aoollar, 2', in which there is a socket, 1, into which socket there is arranged a chuck, n. The wheels 6 and e are provided with suitable feathers, k, that work in the groove k of the spindles d (P. On the end of the drill-spindle (1 there is arranged a pressure attachment having a collar, 0, that tits on the spindle (1 that has a setscrew, 0, for securing the same to the drillspindle (I In the end of the sleeve 1) thatis secured to the spindle d is arranged a screw. r, to create pressure on the drill-spindle d when the same is in operation. Bythis means the drill is kept hard against the metal and caused to complete its work of drilling the hole. The screw has a square head and taper end that maywork in abracebehindthescrew. The inner end of the screw 1 may have a center end, as at t, and work in a corresponding center in the end of the spindle d and may be operated by a handle or other means, as de sired.

Operation: Motion is given to the drivingshat't cl at b. The bevel-gear wheel 6, that is secured to the end of the shaft d, engages with the gear-wheel 6', located on the'driving-spin dle d, and rotates the same. The beveled gear wheel 6 on the end of the driving-spindle d engages with alike gear-wheel, 0 on the drill-spindle d and rotates the same. The driving-spindle d and the drill spindle d may be operated through the sleeves of the gear.- wheels 6 and 0 while the same are rotating by means of the operating handles 0 c. The feathers It, working in the grooves 70, keep the spindles d cl fast for rotating purposes. The adjustable frames ff rotating in the channels of the wheels e c and standards a admits of the spindle (1 being presented in a perpendicular, horizontal, and angular posi tion, as shown in Figs. 1, 2, and 3. The handles c 0 turn on the spindle d and adjustable frame f and offer no obstructions to the rotation of' the same. The drill or tap in the chuck n may be thrown on an angle by reason of the socket and ball working therein.

When the device is to be operated by power a portable steam-engine may be located on the bed-plate a, and the bed-plate provided with wheels to form the same into a truck for movin g the device from place to place, where the same is required.

The driving-spindle d may beilmade any suitable length for practical purposes.

The clutch 9, working on feathers k in the shaft (1, may be operated by any known clutch shifting device for throwing the drill in and out of gear when the device is to be stopped or started.

When the drill is to be used by power the sleeve 12 is placed on the spindle (l and secured Having described myimproved drill audits mode of operation, what I claim, and desire 15 to secure by Letters Patent, is-

The combination of the drill-spindle d ,collars 0, set-screws 0, slecvep, screw 1', and head t, substantially as described, and for the purpose shown and set forth.

GEORGE W. LONGMAN.

Witnesses:

J OHN INGLIS, KITTIE INGLIs. 

